Home / 159,304.12-219,790.20-90,382.18

Finding the Fourth Proportional to 159,304.12, 219,790.20 and 90,382.18

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Solution

The fourth proportional to 159,304.12, 219,790.20 and 90,382.18 is: 124,699.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,304.12 : 219,790.20 = 90,382.18 : x
  2. Step 2: Convert to fraction form
    159,304.12/219,790.20 = 90,382.18/x
  3. Step 3: Cross multiply
    159,304.12x = 219,790.20 × 90,382.18
  4. Step 4: Simplify right side
    159,304.12x = 19,865,117,418.64
  5. Step 5: Solve for x
    x = 19,865,117,418.64/159,304.12
  6. Step 6: Final answer
    x = 124,699.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.